C5509A启动使用定时器

#include <stdio.h>
#include <csl.h>
#include <csl_pll.h>
#include <csl_chip.h>
#include <csl_gpio.h>
#include <csl_timer.h>
#include <csl_irq.h>
#include <csl_chiphal.h>
extern VECSTART(void);      // 有个文件叫做vectors.s55 和代码放在一起,不会出现找不到VECSTART这个函数了。 如果报错需要extern void VECSTART(void);



void delay();
PLL_Config myConfig = {

        0,1,24,1

};

TIMER_Config timCfg0 = {
   TIMER_CTRL,               /* TCR0 */
   0xFFFFu,                  /* PRD0 */
   0x3000                   /* PRSC */
};
Uint16 eventId0;
TIMER_Handle hTimer;
volatile Uint16 timer0_cnt = 0;
interrupt void timer0Isr(void);

void taskFxn(void);
int old_intm;
Uint16 tim_val;
Uint16 xfchange = 0;
Uint16 ms,f;
void main( void )
{
    /*初始化CSL库*/
    CSL_init();
    IRQ_setVecs((Uint32)(&VECSTART));
    old_intm = IRQ_globalDisable();
    PLL_config(&myConfig);
    hTimer = TIMER_open(TIMER_DEV0,TIMER_OPEN_RESET);
    eventId0 = TIMER_getEventId(hTimer);
    IRQ_clear(eventId0);
    IRQ_plug(eventId0,&timer0Isr);
    TIMER_config( hTimer,&timCfg0 );
    IRQ_enable(eventId0);
    IRQ_globalEnable();
    TIMER_start(hTimer);

    GPIO_RSET(IODIR,0xFF);
    while(1)
    {

    }
}

void delay()
{
    Uint32 j = 0,k = 0;
    for(j = 0;j<0xf0;j++)
    {
        for(k= 0;k<3000;k++)
        {}
    }
}

interrupt void timer0Isr(void)
{
    // 7654 3210
    // 0100 0000
    GPIO_RSET(IODATA,0x40);
    delay();
    // 0000 0000
    GPIO_RSET(IODATA,0x00);
    delay();

}
原文地址:https://www.cnblogs.com/sigma0/p/6714392.html